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Home >> BMW >> 2011 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 (Electrical Drives - Repair - E90) >> Drive, Seat Adjustment >> 67 31 501 Removing and installing/replacing drive unit for longitudinal seat adjustment

67 31 501 Removing and installing/replacing drive unit for longitudinal seat adjustment

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks: 

Unfasten plug connection (1) and disconnect.

Fig 1: Identifying Plug Connection
G05779546Courtesy of BMW OF NORTH AMERICA, INC.

Bend metal tab (1) open.

Fig 2: Identifying Metal Tab
G05779547Courtesy of BMW OF NORTH AMERICA, INC.

Lift drive (1) and flex shaft (2) out of guide (4) in direction of arrow.

Detach drive (1) from rubber mounts (3).

Detach flex shaft (2) from drive (1).

Fig 3: Detaching Flex Shaft From Drive
G05779548Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Identifying Short Flex Shaft And Long Flex Shaft
G06852183Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Slide short flex shaft (1) into longitudinal seat adjustment gearing square.

Bend long flex shaft (2) upwards and slide into longitudinal seat adjustment gearing.

Clip motor and flex shafts into carrier plate.

Make sure flex shafts are correctly seated in gearboxes.